L. pusillus  very little, very small  < dim. pusus  little boy  < puer  boy.
● ex “Cinclus dominicensis minor” of Brisson 1760 (Calidris).
● ex “Small Nuthatch” of Catesby 1731, “Petit Torchepot de la Caroline” of Brisson 1760, and “Petite Sittelle à tête brune” of de Buffon 1770-1783 (Sitta).
● ex “Little Sparrow” of Catesby 1731 (Spizella).

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2018). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2018). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from www.hbw.com on 15 December 2018).